#include <iostream>
// #include <fstream>

int main() {
    // Image

    const int image_width = 256;
    const int image_height = 256;

    // std::ofstream fout;
    // fout.open("pic\\image.ppm");
    // Render
    //fout << "P3\n" << image_width << ' ' << image_height << "\n255\n";
    std::cout << "P3\n" << image_width << ' ' << image_height << "\n255\n";
    for(int j = image_height - 1; j >= 0; --j) {
        // Adding a Progress Indicator
        std::cerr << "\rScanlines remaining: " << j << ' ' << std::flush;
        for(int i = 0; i < image_width; i++) {
            auto r = double(i) / (image_width -1);
            auto g = double(j) / (image_height -1);
            auto b = 0.25;

            int ir = static_cast<int>(255.999 * r);
            int ig = static_cast<int>(255.999 * g);
            int ib = static_cast<int>(255.999 * b);
            //fout<< ir << ' ' <<ig << ' ' << ib << '\n';
            std::cout << ir << ' ' <<ig << ' ' << ib << '\n';
        }
    }
    //fout.close();
}